Shower stall



FIG. 1 is a top perspective view of a shower stall, showing my newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a left side elevational view, the right side being a mirrorimage thereof; and

FIG. 4 is a top plan view thereof.

The bottom of the article is plain and unornamented.

The ornamental design for a shower stall, as shown.